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<table width="100%" summary="page for tomato"><tr><td>tomato</td><td style="text-align: right;">R Documentation</td></tr></table>

<h2>Root weights of tomato plants exposed to 4 different treatments</h2>

<h3>Description</h3>

<p>The <code>tomato</code> data frame has 24 rows and 2 columns.
They are from an experiment that exposed tomato plants
to four different 'nutrients'.
</p>


<h3>Usage</h3>

<pre>data(tomato)</pre>


<h3>Format</h3>

<p>This data frame contains the following columns:
</p>

<dl>
<dt>weight</dt><dd><p>weight, in g</p>
</dd>
<dt>trt</dt><dd><p>a factor with levels
<code>water only</code>,
<code>conc nutrient</code>,
<code>2-4-D + conc nutrient</code>,
<code>3x conc nutrient</code></p>
</dd>
</dl>



<h3>Source</h3>

<p>Dr Ron Balham, Victoria University of Wellington NZ, sometime
in 1971 - 1976.
</p>


<h3>Examples</h3>

<pre>
tomato.aov &lt;- aov(log(weight) ~ trt, data=tomato)
fitted.values(tomato.aov)
summary.lm(tomato.aov)
tomato.aov &lt;- aov(formula = weight ~ trt, data = tomato)
summary.lm(tomato.aov)
</pre>


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